72 volt 20 ah vipermax pro base motercycle ebike wiring help

[denfox]

could anyone please help me to where what these wires connect to There 3 thin wires coming from the controller and there a bunch of wires that are not connected to anything underneath the speedometer column attached are pictures thank you in advance for any your help and knowledge in helping me with this clesterf*** of wiring originally the 3 speed switch an the speedometer isn't working so I took it apart to see if I could pin point the issue this is the results after opening it up